The following document contains my structured and easy to read condensed notes filled with great diagrams for all of Biology AQA A level. The boxes for every chapter contain all the concepts you need to know for each chapter with the notes are followed below. Notes are bite sized and will help with...
● All life shows the same basic biochemistry including carbon, hydrogen, oxygen and
nitrogen
● Many organic molecules are made up of a chain of individual molecules
○ Monomers join together to form polymers
■ E.g monosaccharides join to make polysaccharides
● Carbohydrates
○ Test for reducing sugar: Heat with Benedict’s reagent and if it turns yellow, green,
orange or brick red there is a reducing sugar.
■ Non reducing sugar: After completing reducing sugar, heat the new
sample with dilute HCl and neutralise with NaHCO3. Add Benedicts again
● Polysaccharides
○ Glycogen
○ Starch
■ Amylose - unbranched and coiled for storage (compact)
■ Amylopectin - branched so glucose can be released quickly
○ Cellulose
● Test for starch: Iodine turns Blue/Black in the presence of starch
● Lipids
○ Types
■ Triglyceride
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